Skip to main content

Alzog, Johann Baptist


Historian, and patrologist; b. Ohlau, Silesia, June 29, 1808; d. Freiburg, Germany, March 1, 1878. Alzog studied at Breslau and at Bonn. He was ordained in Cologne on July 4, 1834, and received the doctor's degree at Münster in 1835. He then taught at Posen (183644) and Hildesheim until called to the University of Freiburg im Breisgau (1853), where he remained until his death.

Alzog was a voluminous writer of sure theological sense and scientific method in research. In 1841 he published his Lehrbuch der Kirchengeschichte, which went through nine editions and was translated into seven languages. In 1866 he published his Handbuch der Patrologie, a model of exactness in biographical detail, conciseness of doctrinal exposition and bibliographical citation. He edited the Oratio apologetica de fuga sua of St. Gregory of Nazianzus, and also contributed to various periodicals and lexica. He vigorously supported the archbishop, Martin de Dunin, in the controversy over mixed marriages. In 1869 he was called to Rome by Pius IX to take part in the preparation for Vatican Council I. Alzog's work was noted for impartiality and equanimity. After Johann A. mÖhler, he was a principal influence in the revival of studies concerned with positive theology in Germany. He also helped to found the gÖrresgesellschaft.

Bibliography: h. hemmer, Dictionnaire de théologie catholique, ed. a. vacant et al., 15 v. (Paris 190350) 1:931932. p. sÄger, Lexikon für Theologie und Kirche 2, ed. j. hofer and k. rahner, 10 v. (2d, new ed. Freiburg 195765) 1:410411.

[f. x. murphy]

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Alzog, Johann Baptist." New Catholic Encyclopedia. . 22 Feb. 2019 <>.

"Alzog, Johann Baptist." New Catholic Encyclopedia. . (February 22, 2019).

"Alzog, Johann Baptist." New Catholic Encyclopedia. . Retrieved February 22, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.